CN102287632A - Illuminating apparatus and method of controlling illuminating apparatus - Google Patents
Illuminating apparatus and method of controlling illuminating apparatus Download PDFInfo
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- CN102287632A CN102287632A CN2011101310444A CN201110131044A CN102287632A CN 102287632 A CN102287632 A CN 102287632A CN 2011101310444 A CN2011101310444 A CN 2011101310444A CN 201110131044 A CN201110131044 A CN 201110131044A CN 102287632 A CN102287632 A CN 102287632A
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- 238000000034 method Methods 0.000 title claims description 12
- 238000000576 coating method Methods 0.000 claims description 46
- 239000011248 coating agent Substances 0.000 claims description 44
- 230000003213 activating effect Effects 0.000 claims description 19
- 230000005284 excitation Effects 0.000 claims description 11
- 230000003595 spectral effect Effects 0.000 claims description 11
- 238000009792 diffusion process Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 3
- YJPIGAIKUZMOQA-UHFFFAOYSA-N Melatonin Natural products COC1=CC=C2N(C(C)=O)C=C(CCN)C2=C1 YJPIGAIKUZMOQA-UHFFFAOYSA-N 0.000 description 14
- DRLFMBDRBRZALE-UHFFFAOYSA-N melatonin Chemical compound COC1=CC=C2NC=C(CCNC(C)=O)C2=C1 DRLFMBDRBRZALE-UHFFFAOYSA-N 0.000 description 14
- 229960003987 melatonin Drugs 0.000 description 14
- 230000028327 secretion Effects 0.000 description 14
- 239000000758 substrate Substances 0.000 description 11
- 238000005286 illumination Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000147 hypnotic effect Effects 0.000 description 1
- 235000019239 indanthrene blue RS Nutrition 0.000 description 1
- UHOKSCJSTAHBSO-UHFFFAOYSA-N indanthrone blue Chemical compound C1=CC=C2C(=O)C3=CC=C4NC5=C6C(=O)C7=CC=CC=C7C(=O)C6=CC=C5NC4=C3C(=O)C2=C1 UHOKSCJSTAHBSO-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/16—Controlling the light source by timing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/065—Light sources therefor
- A61N2005/0651—Diodes
- A61N2005/0652—Arrays of diodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N5/00—Radiation therapy
- A61N5/06—Radiation therapy using light
- A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
- A61N2005/0662—Visible light
- A61N2005/0663—Coloured light
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2113/00—Combination of light sources
- F21Y2113/10—Combination of light sources of different colours
- F21Y2113/13—Combination of light sources of different colours comprising an assembly of point-like light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01021—Scandium [Sc]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Planar Illumination Modules (AREA)
- Led Device Packages (AREA)
Abstract
An illuminating apparatus 1 includes a first light source 10 to output white light, having a first light emitting diode 11 to emit blue light and a first phosphor layer 12 containing blue excited phosphors M1 that emit light when excited by the blue light from the first light emitting diode 11 and a second light source 20 to output white light, having a second light emitting diode 21 to emit blue light, a second phosphor layer 22 containing blue excited phosphors M2 that emit light when excited by the blue light from the second light emitting diode 21, and a filter layer 23 to partly block blue light that is emitted from the second light emitting diode 21 and is transmitted through the second phosphor layer 22.
Description
Technical field
The present invention relates to consider people's control method live body regular movements influence, that light emitting diode is used for the lighting device and the lighting device of light source.
Background technology
The lighting device (hereinafter referred to as " LED lighting device ") that light emitting diode (LED) is used for light source obtains practicability.In order to realize exporting the LED lighting device of white light, use a plurality of LED of outgoing red light, green light, blue light respectively, perhaps use blue led and various blue activating fluorescent body (Yellow luminous body, green emitting body, emitting red light body) have been carried out the pseudo-White LED that makes up.
And, proposed to have considered LED lighting device to the influence of the live body regular movements of human body.For example, such method has been proposed: use LED lighting device, control the melatonin secretion of human body (for example with reference to patent documentation 1) by controlling 2 kinds of blue leds with 2 kinds of different blue leds of red LED, green LED and wavelength.
[patent documentation 1] TOHKEMY 2007-173557 communique
Yet, in the White LED of the RGB structure of using red LED, green LED and blue led, the uniformity of colourity, brightness, color, controlled be difficult.Therefore, as illuminator, yield rate is low, the price height.And, owing to drive the LED of many each colors, thereby have the low problem of electrical efficiency.
Summary of the invention
In view of the above problems, the purpose of this invention is to provide and a kind ofly control the melatonin secretion of human body and can suppress lighting device that electrical efficiency descends and the control method of lighting device.
According to a mode of the present invention, a kind of lighting device is provided, this lighting device has: (a) the 1st light source, it exports white light, and has the 1st light emitting diode and the 1st luminescent coating that comprises the blue activating fluorescent body luminous by the emergent light excitation of the 1st light emitting diode of outgoing blue light; And (b) the 2nd light source, it exports white light, and have the outgoing blue light the 2nd light emitting diode, comprise the 2nd luminescent coating of the blue activating fluorescent body luminous and block the filter layer of the part of the blue light that sees through the 2nd luminescent coating from the 2nd light emitting diode outgoing by the excitation of the emergent light of the 2nd light emitting diode.
According to another mode of the present invention, a kind of control method of lighting device is provided, this lighting device has: the 1st light source, it exports white light, and has the 1st light emitting diode and the 1st luminescent coating that comprises the blue activating fluorescent body luminous by the emergent light excitation of the 1st light emitting diode of outgoing blue light; And the 2nd light source, it exports white light, and have the outgoing blue light the 2nd light emitting diode, comprise the 2nd luminescent coating of the blue activating fluorescent body luminous and block from the 2nd light emitting diode outgoing and see through the filter layer of a part of the blue light of the 2nd luminescent coating by the excitation of the emergent light of the 2nd light emitting diode, in the control method of lighting device, to become reduction the opposing party's brightness when improving a side brightness from the brightness of the 1st output light of the 1st light source output with from the brilliance control of the 2nd output light of the 2nd light source output.
The invention provides and a kind ofly control the melatonin secretion of human body and can suppress lighting device that electrical efficiency descends and the control method of lighting device.
Description of drawings
Fig. 1 is the schematic diagram that the structure of the lighting device that the 1st embodiment of the present invention relates to is shown.
Fig. 2 is the table that is illustrated in the example of spendable fluorophor in the lighting device that the 1st embodiment of the present invention relates to.
Fig. 3 is the figure that the luminosity spectral characteristic of incandescent lamp bulb, fluorescent lamp and pseudo-White LED is shown.
Fig. 4 is the figure that the time-varying example of brightness of the output light that makes the lighting device that the 1st embodiment of the present invention relates to is shown.
Fig. 5 illustrates a plurality of the 1st light sources in the lighting device that the 1st embodiment of the present invention relates to and the vertical view of a plurality of the 2nd configured light sources examples.
Fig. 6 is the vertical view that another configuration example of a plurality of the 1st light sources in the lighting device that the 1st embodiment of the present invention relates to and a plurality of the 2nd light sources is shown.
Fig. 7 is the schematic diagram that the structure of the lighting device that the 2nd embodiment of the present invention relates to is shown.
Fig. 8 is the schematic diagram that the structure of the lighting device that the modified example of the 2nd embodiment of the present invention relates to is shown, and Fig. 8 (a) is a vertical view, and Fig. 8 (b) is a profile.
Fig. 9 is the schematic diagram that the structure of the lighting device that another modified example of the 2nd embodiment of the present invention relates to is shown, and Fig. 9 (a) is a vertical view, and Fig. 9 (b) is a profile.
Label declaration
1: lighting device; 10: the 1 light sources; 11: the 1 light emitting diodes; 12: the 1 luminescent coatings; 15,25: encapsulation; 20: the 2 light sources; 21: the 2 light emitting diodes; 22: the 2 luminescent coatings; 23: filter layer; 30: substrate; 31: the 1 substrates; 32: the 2 substrates; 40: control device; 50: light diffusing board; 51: the 1 interareas; 52: the 2 interareas; 55,56: light reflecting board; 61,62: lens; 100,200: output face; 101,201: negative electrode; 102,202: positive electrode; L1: the 1st output light; L2: the 2nd output light; Ld: output light; M1: blue activating fluorescent body; M2: blue activating fluorescent body.
The specific embodiment
Below, with reference to description of drawings the of the present invention the 1st and the 2nd embodiment.In the record of the following drawings, identical or similar part is enclosed identical or similar label.But, accompanying drawing is that schematically concrete size should be judged with reference to following explanation.And, certainly also include each other the size relationship part different each other with ratio at accompanying drawing.
And, the the 1st and the 2nd embodiment example shown below illustrates and is used for apparatus and method that technological thought of the present invention is specialized, and technological thought of the present invention is not defined as following shape, structure, configuration etc. with the shape of component parts, structure, configuration etc.Embodiments of the present invention can apply various changes in the claim scope.
(the 1st embodiment)
The lighting device 1 that the 1st embodiment of the present invention relates to has as shown in Figure 1: the 1st light source 10, it exports white light, and has the 1st light emitting diode 11 and the 1st luminescent coating 12 that comprises the blue activating fluorescent body M1 luminous by the emergent light excitation of the 1st light emitting diode 11 of outgoing blue light; And the 2nd light source 20, it exports white light, and have the outgoing blue light the 2nd light emitting diode 21, comprise the 2nd luminescent coating 22 of the blue activating fluorescent body M2 luminous and block from 21 outgoing of the 2nd light emitting diode and see through the filter layer 23 of a part of the blue light of the 2nd luminescent coating 22 by the excitation of the emergent light of the 2nd light emitting diode 21.The 1st light source 10 and the 2nd light source 20 are that blue led and various blue activating fluorescent body have been carried out the pseudo-White LED that makes up.
The 1st light source 10 and the 2nd light source 20 are configured on the substrate 30.In addition, supposing that the bottom surface of the 1st light emitting diode 11 and the 2nd light emitting diode 21 is negative electrodes, is positive electrode above.Outgoing blue light above the 1st light emitting diode 11 and the 2nd light emitting diode 21.
The negative electrode of the 1st light emitting diode 11 contacts with negative electrode 101.And the positive electrode of the 1st light emitting diode 11 is connected with positive electrode 102 by for example closing line.Negative electrode 101 is connected with distribution 311 on being configured in substrate 30, and positive electrode 102 is connected with distribution 312 on being configured in substrate 30.When having applied voltage between via the positive electrode of 311,312 pairs of the 1st light emitting diodes 11 of distribution and negative electrode, drive current flows into the 1st light emitting diode 11.Thus, from the 1st light emitting diode 11 outgoing blue lights.
The structure of the 2nd light emitting diode 21 is identical with the 1st light emitting diode 11.The negative electrode of the 2nd light emitting diode 21 contacts with negative electrode 201.And the positive electrode of the 2nd light emitting diode 21 is connected with positive electrode 202 by for example closing line.Negative electrode 201 is connected with distribution 321 on being configured in substrate 30, and positive electrode 202 is connected with distribution 322 on being configured in substrate 30.When having applied voltage between via the positive electrode of 321,322 pairs of the 2nd light emitting diodes 21 of distribution and negative electrode, drive current flows into the 2nd light emitting diode 21, from the 2nd light emitting diode 21 outgoing blue lights.
As shown in Figure 1, the 1st and the 2nd light emitting diode 11,21 is configured in the recess bottom surface with the encapsulation 15,25 that is filled with recess the 1st luminescent coating 12 and the 2nd luminescent coating 22, that the bottom is narrower than top respectively.Thus, the directive property from the blue light of the 1st and the 2nd light emitting diode 11,21 outgoing improves.
From the blue light of the 1st light emitting diode 11 outgoing by after the 1st luminescent coating 12, from output face 100 outputs of the 1st light source 10.The 1st luminescent coating 12 can adopt resin that contains blue activating fluorescent body (being designated hereinafter simply as " fluorophor ") M1 etc.Fluorophor M1 is the various fluorophor that radiated the light of particular color by the blue light excitation respectively, and Fig. 2 illustrates its example.Fluorophor M1 will be transformed to sodium yellow L from the part of the blue light of the 1st light emitting diode 11 outgoing
Y1With red light L
R1
Usually, carried out in the pseudo-White LED of combination at light emitting diode and various blue activating fluorescent body (Yellow luminous body, green emitting body, emitting red light body) the outgoing blue light, the efficient that blue light is transformed to white light is about 30%, and about 70% blue light is not transformed and is radiated.From 11 outgoing of the 1st light emitting diode, the blue light that do not carry out conversion in the 1st luminescent coating 12, the blue light that promptly is helpless to the fluorophor M1 that comprises in the 1st luminescent coating 12 is same as before as blue light L
B1Be output from the output face 100 of the 1st light source 10.Therefore, the 1st output light L1 from 10 outputs of the 1st light source comprises blue light L
B1, green light L
G1, sodium yellow L
Y1, red light L
R1As composition.
On the other hand,, after, be output from the blue light of the 2nd light emitting diode 21 outgoing from the output face 200 of the 2nd light source 20 by the 2nd luminescent coating 22 and filter layer 23.The 2nd luminescent coating 22 is resins that contain blue activating fluorescent body (being designated hereinafter simply as " fluorophor ") M2 etc.The adoptable fluorophor of fluorophor M2 is identical with the adoptable fluorophor of fluorophor M1, and Fig. 2 illustrates its example.Fluorophor M2 will be transformed to from the part of the blue light of the 2nd light emitting diode 21 outgoing, green light L
G2, sodium yellow L
Y2, red light L
R2, the light after the conversion is output from output face 200.By fluorophor M2 not the part of the emergent light of the 2nd light emitting diode 21 of conversion block by filter layer 23, and the remaining emergent light that does not block is as blue light L
B2From output face 200 outputs.Therefore, the 2nd output light L2 from 20 outputs of the 2nd light source comprises blue light L
B2, green light L
G2, sodium yellow L
Y1, red light L
R1As composition.
As mentioned above, filter layer 23 absorb or reflection by not conversion and passed through the emergent light of the 2nd light emitting diode 21 of the 2nd luminescent coating 22 of fluorophor M2, that is, be helpless to the part in the blue light of the fluorophor M2 that comprises in the 2nd luminescent coating 22.Filter layer 23 can adopt the resin that absorbs blue light, the resin that has mixed the dyestuff that absorbs blue light etc.Perhaps, the material of reflect blue light only can be used for filter layer 23.
In addition, in Fig. 1, the example that the filter layer 23 of the 2nd light source 20 is configured in the top of the 2nd luminescent coating 22 is shown, yet filter layer 23 can be configured in the inside of the 2nd luminescent coating 22.In this case, filter layer 23 is configured in the top of fluorophor M2 at least, so that the blue light conversion of the 2nd luminescent coating 22 is not hindered by filter layer 23.
Between the live body regular movements of light wavelength and human body, below know as the known fact.That is,
(1) when near the illumination the wavelength 460nm was penetrated, melatonin secretion was suppressed;
(2) when the people realizes the truth (when waking up), melatonin secretion is suppressed;
(3) before about 2 hours of evening sleep to the sleep first half, secrete a large amount of epiphysins, promote the decline and the sleep importing of body temperature;
(4) illumination before the sleep is penetrated and is upset the live body regular movements.
As shown in Figure 3, compare with the luminosity spectral characteristic Sa of incandescent lamp bulb and the luminosity spectral characteristic Sb of fluorescent lamp, circle is shown near the peak value that has luminous intensity the wavelength 460nm among the luminosity spectral characteristic Sc of pseudo-White LED such as Fig. 3.This be because, as stating, the efficient that is transformed to white light at pseudo-White LED medium blue coloured light is about 30%, about 70% blue light is helpless to fluorophor.
Like this, many pseudo-White LEDs are owing to have the peak value of luminous intensity near wavelength 460nm, thereby are unsuitable for the illumination in evening.Because people's visual sense degree is low near wavelength 460nm, thereby upsets the live body regular movements unawares.As can be seen from Figure 3, the disadvantage that upsets the live body regular movements is big under the situation of pseudo-White LED, is same degree under the situation of incandescent lamp bulb and fluorescent lamp.That is to say,, also can upset the live body regular movements sometimes even be that purpose imports the LED illumination with energy-conservation and environmental protection.
As stating, be helpless to of output face 100 outputs of the blue light of the fluorophor M1 that comprises in the 1st luminescent coating 12 from the 1st light source 10.That is to say near the 1st output light L1 has luminous intensity wavelength 460nm peak value.Therefore, the 1st light source 10 is suitable for the illumination on daytime, and is unsuitable for the illumination in evening.
Relative therewith, in the 2nd light source 20, see through the emergent light of the 2nd light emitting diode 21 of the 2nd luminescent coating 22, a part that promptly is helpless to the blue light of the fluorophor M2 that comprises in the 2nd luminescent coating 22 is blocked by filter layer 23.For example, having under the situation of luminosity spectral characteristic Sc shown in Figure 3, see through about 50% in the blue light of the 2nd luminescent coating 22 and absorb or reflection by filter layer 23 from 21 outgoing of the 2nd light emitting diode and the light that passed through the 2nd luminescent coating 22.Thus, near the peak value of the luminous intensity the wavelength 460nm disappears, and the luminosity spectral characteristic of the 2nd output light L2 is smooth.Blocking the blue light of which kind of degree by filter layer 23, is to wait according to the blue light intensity that sees through the 2nd luminescent coating 22 to set.
Therefore, the 2nd output light L2 that exports from the output face 200 of the 2nd light source 20 compares with the 1st output light L1 that exports from the output face 100 of the 1st light source 10, is the light that blue light is cut down.Therefore, for the 1st output light L1 and the 2nd output light L2, luminosity spectral characteristic difference.
But, the color temperature (colourity) of the 1st output light L1 and the 2nd output light L2 equates.And the colour index of on average drilling of the 1st output light L1 and the 2nd output light L2 is more than the Ra=80.For example, comprise the fluorophor of many green emittings by the 2nd luminescent coating 22 is compared with the 1st luminescent coating 12, and a plurality of fluorophor that comprise in the 2nd luminescent coating 22 are made up,, color temperature is equated for the 1st output light L2 and the 2nd output light L2.By making the 2nd luminescent coating 22 comprise the fluorophor of many green emittings, the colour index of drilling of the 2nd output light L2 is equated with the 1st output light L1, suppress the decline of color temperature.Thus, by the blue composition of simple minimizing, can avoid the 2nd output light L2 to seem to show red phenomenon.That is to say, with blue light L
B1The 1st many output light L1 compare, and make the 2nd output light L2 reduce blue light L
B2, make the 2nd output light L2 comprise green light L on the other hand
G2In this case, the luminosity spectral characteristic of the 2nd output light L2 is and the 1st characteristic that the luminosity spectral characteristic of exporting light L1 is compared, blue composition is few and green composition is many.
According to the lighting device 1 that the 1st embodiment with the 1st light source 10 and the 2nd light source 20 relates to, as described below, control the melatonin secretion of human body energetically, can realize simultaneously realizing the truth and comfortable hypnosis importing.
In Fig. 1, control device 40 controls are from the brightness of the 1st output light L1 of the 1st light source 10 outputs and the 2nd brightness of exporting light L2 of exporting from the 2nd light source 20.For example, control device 40 control respectively impose on the voltage between negative electrode 101 and the positive electrode 102 and impose on negative electrode 201 and positive electrode 202 between voltage, adjust the drive current of the 1st light emitting diode 11 and the 2nd light emitting diode 21 separately.Thus, by the brightness of control device 40 independent control the 1st output light L1 and the brightness of the 2nd output light L2.
During in the morning with noon etc., improve from the brightness of the 1st output light L1 of the 1st light source 10 outputs, and reduce from the brightness of the 2nd output light L2 of the 2nd light source 20 outputs by control device 40.By such employing " brightness of the brightness of the 1st output light L1＞the 2nd output light L2 ", increase the blue light that comprises in the output light of lighting device 1 integral body.For example, when the brightness that makes lighting device 1 integral body was 100, making the brightness of the 1st output light L1 was 60～100, and making the brightness of the 2nd output light L2 is 40～0.Its result suppresses melatonin secretion energetically, promotes realizing the truth of people.
On the other hand, at night with sleep before, when sleep, reduce the brightness of the 1st output light L1 by control device 40, and improve the brightness of the 2nd output light L2.By such employing " brightness of the brightness of the 1st output light L1＜the 2nd output light L2 ", reduce the blue light that comprises in the output light of lighting device 1 integral body.For example, when the brightness that makes lighting device 1 integral body was 100, making the brightness of the 1st output light L1 was 0～40, and making the brightness of the 2nd output light L2 is 100～60.Its result does not hinder melatonin secretion, can realize that comfortable sleep imports.
In lighting device shown in Figure 11, use control device 40, the brightness automatic or manual of the 1st output light L1 and the 2nd output light L2 is changed.Under the situation that the brightness that makes the 1st output light L1 and the 2nd output light L2 changes automatically, by brightness is changed continuously, can steadily or tempestuously carry out " realize the truth (morning) → usually state (noon) → evening → sleep before → sleep " variation, can control energetically and realize the truth and sleep importing.
Fig. 4 illustrates the brightness continually varying example that the live body regular movements of considering human body makes the 1st output light L1 and the 2nd output light L2.As shown in Figure 4, before the common state by realizing the truth in the morning, noon, the sleep in evening, be about to sleep before, the brightness of control the 1st output light L1 and the 2nd output light L2 in the dormant each side, can be at life control melatonin secretion.That is, to noon, by improving the brightness of the 1st output light L1, and reduce the brightness of the 2nd output light L2 when realizing the truth, suppress melatonin secretion.Then, from evening before be about to sleep, by reducing the brightness of the 1st output light L1, and improve the brightness of the 2nd output light L2, make melatonin secretion.In sleep state, the brightness of the 1st output light L1 and the 2nd output light L2 is adjusted to zero.By the brightness of such control lighting device 1, can realize the good both sides that realize the truth and sleep and import.
As illustrated in Fig. 4, the 1st output light L1 and the 2nd output light L2 brightness are separately changed periodically, reduce the opposing party's brightness when improving a side brightness with box lunch.This cycle can be used the predefined program in conjunction with for example people's diel regular movements, is realized by control device 40.Thus, can realize having considered both sides' the lighting device of melatonin secretion and diel regular movements and the control of lighting device.
As illustrating, for the 1st output light L1 and the 2nd output light L2, luminosity spectral characteristic differs from one another.Yet by adjusting the material and the cooperation of the fluorophor that comprises in the 1st luminescent coating 12 and the 2nd luminescent coating 22, color temperature is equal.Therefore, when variation had taken place in the brightness that makes the 1st output light L1 and the 2nd output light L2, the people can not discern color temperature and change, and has reduced the discomfort that is caused by tone variations.
And, be more than 80 by the colour index Ra that on average drills that makes the 1st light source 10 and the 2nd light source 20, can realize the good lighting device 1 of color evident characteristics of object.
Fig. 5～Fig. 6 illustrates a plurality of the 1st light sources 10 and a plurality of the 2nd light source 20 is configured in example on the substrate 30.Fig. 5～Fig. 6 is the rectangular example that 3 row 2 are listed as with the 1st light source 10 and the 2nd light source 20, is the vertical view of observing from the outbound course of light.Fig. 5 is with the 1st light source 10 and the 2nd light source 20 example in line direction and column direction alternate configurations.Fig. 6 is the example that disposes the 2nd light source 20 at the 1st row configuration the 1st light source 10, at the 2nd row.By disposing a plurality of the 1st light sources 10 and the 2nd light source 20, can realize the lighting device that throws light on a large scale.
As described above such, the lighting device 1 that the 1st embodiment of the present invention relates to has: the 1st light source 10, and it makes the 1st light emitting diode 11 of outgoing blue light make up with the 1st luminescent coating 12 that comprises blue activating fluorescent body; And the 2nd light source 20, its 2nd luminescent coating 22 that makes the 2nd light emitting diode 21 of outgoing blue light and comprise blue activating fluorescent body makes up, and has and hinder the filter layer 23 that blue light passes through.Therefore, compare with the 1st output light L1 that exports from the 1st light source 10, from the 2nd output light L2 of the 2nd light source 20 outputs, blue light is cut down.Therefore, according to lighting device 1,, can control the melatonin secretion of human body energetically by brightness and the 2nd brightness of exporting light L2 of controlling the 1st output light L1 respectively.And, because the 1st light source 10 and the 2nd light source 20 are pseudo-White LEDs, thereby compare with the lighting device that White LED with the RGB structure is used for light source, can suppress the decline of electrical efficiency.
(the 2nd embodiment)
Fig. 7 illustrates the lighting device 1 that the 2nd embodiment of the present invention relates to.Lighting device 1 shown in Figure 7 has the light diffusing board 50 of the direct of travel that is configured in the 1st output light L1 and the 2nd output light L2.Other structure is identical with the 1st embodiment shown in Figure 1.
The 1st output light L1 and the 2nd output light L2 that incide light diffusing board 50 from the 1st interarea 51 respectively pass through light diffusing board 50 when carrying out diffusion.Then, export the homogenized output light Ld of brightness from the 2nd interarea 52 of light diffusing board 50.Therefore, reduced discomfort when the brightness that makes the 1st output light L1 and the 2nd output light L2 has taken place to change, that cause by the variation (flickering in space) of the light and shade position and the light and shade position of ligthing paraphernalia.Other is identical with the 1st embodiment essence, omits repeat specification.
＜modified example 〉
Fig. 8 (a), Fig. 8 (b) illustrate the modified example of the lighting device 1 that the 2nd embodiment relates to.Fig. 8 (a) is the vertical view of observing from from the outbound course of the output light Ld of lighting device 1, and Fig. 8 (b) is the profile along the VIII-VIII direction of Fig. 8 (a).In Fig. 7, light diffusing board 50 is configured in the top of the 1st light source 10 and the 2nd light source 20.Relative therewith, in the lighting device 1 shown in Fig. 8 (a), Fig. 8 (b), different with Fig. 7 is to dispose the 1st light source 10 and the 2nd light source 20 in the side of light diffusing board 50.
Shown in Fig. 8 (a), on the 1st substrate 31, alternately dispose the 1st light source 10 and the 2nd light source 20, same, on the 2nd substrate 32, alternately dispose the 1st light source 10 and the 2nd light source 20.Shown in Fig. 8 (a), Fig. 8 (b), preferably, it is opposed that the 1st light source 10 and the 2nd light source 20 are configured to clamp light diffusing board 50.The 1st output light L1 and the 2nd output light L2 that incide respectively from the side of light diffusing board 50 in the light diffusing board 50 after the diffusion, export from the 1st interarea 51 of light diffusing board 50 in light diffusing board 50.
In this case, shown in Fig. 8 (b), the light reflecting board 55 of reflection the 1st output light L1 and the 2nd output light L2 can be configured in the 2nd interarea 52 of light diffusing board 50.Thus, can improve brightness from the output light Ld of the 1st interarea 51.In addition, can export 1st interarea 51 and the 2nd interarea 52 each side output of light Ld and make not at the 2nd interarea 52 configuration light reflecting boards 55 from light diffusing board 50.
And, lens 61 can be configured in the output face 100 of the 1st light source 10, and lens 62 be configured in the output face 200 of the 2nd light source 20.The 1st output light L1 and the 2nd output light L2 are converged to the side of light diffusing board 50 by lens 61,62.
In addition, shown in Fig. 9 (a), Fig. 9 (b), can only dispose the 1st light source 10 and the 2nd light source 20 in a side of light diffusing board 50.Fig. 9 (a) is the vertical view of observing from from the outbound course of the output light Ld of lighting device 1, and Fig. 9 (b) is the profile along the IX-IX direction of Fig. 9 (a).Most applications is that the 1st output light L1 and the 2nd output light L2 decay in light diffusing board 50, and do not arrive another side of light diffusing board 50.Yet, can export the light reflecting board 56 that light L1 and the 2nd exports light L2 with the 1st side configuration reflection the 1st of exporting the opposed light diffusing board 50 in side of light L1 and the 2nd output light L2 incident.
The lighting device 1 that the 2nd embodiment according to the present invention relates to can be realized controlling the melatonin secretion of human body energetically and reduce the lighting device of the discomfort that the variation by the light and shade position of ligthing paraphernalia and light and shade position causes.
(another embodiment)
As mentioned above, the invention has been described by the 1st and the 2nd embodiment, should not be construed as the present invention is limited yet form the argumentation of its disclosed part and accompanying drawing.Concerning industry personnel, various alternate embodiments, embodiment and application technology are conspicuous from the disclosure.
In the explanation of the 1st and the 2nd embodiment of having stated, illustrated from the 1st of the 1st light source 10 outputs and exported the brightness of light L1 and export the situation of the brightness of light L2 by control device 40 controls from the 2nd of the 2nd light source 20 outputs.Yet, can not use control device 40 and by the manually brightness of control the 1st output light L1 and the brightness of the 2nd output light L2.
Like this, certainly, the present invention comprises here not the various embodiments of record etc.Therefore, the specific item of invention that only related to by appropriate claim scope from above-mentioned explanation of technical scope of the present invention decides.
Claims (12)
1. a lighting device is characterized in that, this lighting device has:
The 1st light source, it exports white light, and has the 1st light emitting diode and the 1st luminescent coating that comprises the blue activating fluorescent body luminous by the emergent light excitation of the 1st light emitting diode of outgoing blue light; And
The 2nd light source, it exports white light, and have the outgoing blue light the 2nd light emitting diode, comprise the 2nd luminescent coating of the blue activating fluorescent body luminous and block the filter layer of the part of the blue light that sees through described the 2nd luminescent coating from described the 2nd light emitting diode outgoing by the excitation of the emergent light of the 2nd light emitting diode.
2. lighting device according to claim 1 is characterized in that this lighting device also has control device, and the control of this control device is from the brightness of the output light of described the 1st light source output with from the brightness of the output light of described the 2nd light source output.
3. lighting device according to claim 2 is characterized in that, described control device changes the output light brightness separately of described the 1st light source and described the 2nd light source according to the mode that reduces the opposing party's brightness when improving a side brightness.
4. according to each described lighting device in the claim 1 to 3, it is characterized in that the output light of described the 2nd light source has compares the luminosity spectral characteristic that blue composition is few and green composition is many with the output light of described the 1st light source.
5. lighting device according to claim 4 is characterized in that, described the 2nd luminescent coating is compared with described the 1st luminescent coating, comprises the fluorophor of more green emitting.
6. according to each described lighting device in the claim 1 to 5, it is characterized in that, this lighting device also has light diffusing board, and the output light of described the 1st light source and described the 2nd light source incides this light diffusing board, and the described output light of incident passes through this light diffusing board in diffusion.
7. lighting device according to claim 6 is characterized in that, incides another interarea output from described light diffusing board of the output light of described the 1st light source of described light diffusing board and described the 2nd light source respectively from an interarea of described light diffusing board.
8. lighting device according to claim 6 is characterized in that, incides described the 1st light source of described light diffusing board and the output light of described the 2nd light source from the side of described light diffusing board respectively and exports from the interarea of described light diffusing board.
9. lighting device according to claim 8, it is characterized in that, this lighting device also has reflecting plate, this reflecting plate is configured on the interarea of described light diffusing board and reflects the output light of described the 1st light source and described the 2nd light source, and the output light of described the 1st light source and described the 2nd light source is from another interarea output of described light diffusing board.
10. according to Claim 8 or 9 described lighting devices, it is characterized in that, this lighting device also has the lens in the output face that is configured in described the 1st light source and described the 2nd light source respectively, and the output light of described the 1st light source and described the 2nd light source is converged on the side of described light diffusing board by these lens.
11. the control method of a lighting device, it is characterized in that, this lighting device has: the 1st light source, and it exports white light, and has the 1st light emitting diode and the 1st luminescent coating that comprises the blue activating fluorescent body luminous by the emergent light excitation of the 1st light emitting diode of outgoing blue light; And the 2nd light source, it exports white light, and have the outgoing blue light the 2nd light emitting diode, comprise the 2nd luminescent coating of the blue activating fluorescent body luminous and block the filter layer of the part of the blue light that sees through described the 2nd luminescent coating from described the 2nd light emitting diode outgoing by the excitation of the emergent light of the 2nd light emitting diode, the control method of this lighting device is characterised in that
Control from the brightness of the 1st output light of described the 1st light source output with from the brightness of the 2nd output light of described the 2nd light source output according to the mode that when improving a side brightness, reduces the opposing party's brightness.
12. the control method of lighting device according to claim 11 is characterized in that, described the 1st output light and described the 2nd output light brightness are separately changed periodically.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010130140A JP2011258649A (en) | 2010-06-07 | 2010-06-07 | Lighting system and method for controlling the same |
| JP2010-130140 | 2010-06-07 |
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| CN102287632A true CN102287632A (en) | 2011-12-21 |
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| CN2011101310444A Pending CN102287632A (en) | 2010-06-07 | 2011-05-19 | Illuminating apparatus and method of controlling illuminating apparatus |
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| US (1) | US20110299277A1 (en) |
| JP (1) | JP2011258649A (en) |
| CN (1) | CN102287632A (en) |
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| CN109404747A (en) * | 2018-09-05 | 2019-03-01 | 浙江凯耀照明股份有限公司 | One kind having multispectral health-care lamp |
| CN111540734A (en) * | 2020-05-08 | 2020-08-14 | 开发晶照明（厦门）有限公司 | Light emitting device |
| CN111540734B (en) * | 2020-05-08 | 2021-08-24 | 开发晶照明（厦门）有限公司 | Light emitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110299277A1 (en) | 2011-12-08 |
| JP2011258649A (en) | 2011-12-22 |
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Application publication date: 20111221 |